| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2019 |
|
| 2 |
2018 |
|
| 3 |
2017 |
|
| 4 |
2016 |
|
| 5 |
2015 |
|
| 6 |
2014 |
|
| 7 |
2013 |
27.71 |
| 8 |
2012 |
28.20 |
| 9 |
2011 |
28.89 |
| 10 |
2010 |
29.51 |
| 11 |
2009 |
28.59 |
| 12 |
2008 |
28.62 |
| 13 |
2007 |
27.30 |
| 14 |
2006 |
27.37 |
| 15 |
2005 |
27.10 |
| 16 |
2004 |
27.66 |
| 17 |
2003 |
28.01 |
| 18 |
2002 |
26.22 |
| 19 |
2001 |
25.95 |
| 20 |
2000 |
26.75 |
| 21 |
1999 |
26.12 |
| 22 |
1998 |
26.80 |
| 23 |
1997 |
26.51 |
| 24 |
1996 |
24.78 |
| 25 |
1995 |
24.45 |
| 26 |
1994 |
25.13 |
| 27 |
1993 |
25.24 |
| 28 |
1992 |
26.50 |
| 29 |
1991 |
23.82 |
| 30 |
1990 |
25.05 |
| 31 |
1989 |
23.43 |
| 32 |
1988 |
22.25 |
| 33 |
1987 |
24.86 |
| 34 |
1986 |
22.86 |
| 35 |
1985 |
22.87 |
| 36 |
1984 |
25.30 |
| 37 |
1983 |
20.68 |
